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numpy.nditer.iternext
method
nditer.iternext()- 
    
Check whether iterations are left, and perform a single internal iteration without returning the result. Used in the C-style pattern do-while pattern. For an example, see
nditer.- Returns
 - 
      
iternextbool- 
        
Whether or not there are iterations left.
 
 
 
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 https://numpy.org/doc/1.20/reference/generated/numpy.nditer.iternext.html